... 40-- 80 reinforced with glass fiber ISO9001-2000 FRP pipe (FRP)Fiber winding FRP tubes with reliability, safety and efficiency, mainly ... by secondary pollution.3, water resistant, corrosion resistance of FRP pipes excellent corrosion resistance, anti-corrosion, reduced costced ... the mandrel glass fiber winding with the same process manufacturing lining, gel according to design linear and good after ...